My mom making me get birth control

My mom is making me to get birth control but I don't want it but that's the only way I can go to my boyfriends house without her FaceTiming or calling me every five minutes but I really don't want it bc I promise my dad I wouldn't need it b4 he died bc I wouldn't be sexually active until marriage but I was real young when that happened (10) But I broke the promise and now sexually active with my boyfriend ( we use condoms) but nb knows but his mom and his sister. And my mom thinks we are but not totally sure but I don't wanna confirm it bc I don't want her looking at me differently so I come on this app and ask for u guys opinion what should I do